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Finding the Fourth Proportional to 620,608.02, 930,893.40 and 171,356.28

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Solution

The fourth proportional to 620,608.02, 930,893.40 and 171,356.28 is: 257,029.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,608.02 : 930,893.40 = 171,356.28 : x
  2. Step 2: Convert to fraction form
    620,608.02/930,893.40 = 171,356.28/x
  3. Step 3: Cross multiply
    620,608.02x = 930,893.40 × 171,356.28
  4. Step 4: Simplify right side
    620,608.02x = 159,514,430,100.55
  5. Step 5: Solve for x
    x = 159,514,430,100.55/620,608.02
  6. Step 6: Final answer
    x = 257,029.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.